Definition of potential energy
energy that is stored, based on height
ability to change from one form to another
(Conduction / Radiation / Convection) is the transfer of energy through direct contact.
Conduction
Which roller coaster will not have enough kinetic energy at the bottom of the first hill to carry the car over the second hill (A, B, C, D)
What is C
When a car is started (gravitational energy / electrical energy) produces a spark.
electrical energy
Kinetic Energy
Energy in motion/movement.
Electrical Force
Force created with the movement of electrons
(Conduction / Radiation / Convection) is the transfer of energy through waves.
Radiation
A baseball is hit into the air with a bat. When does the baseball have the greatest potential energy?
When it reaches its highest point.
The thermal energy of the spark of a car releases stored chemical energy, which is (potential / kinetic) energy.
Gravitational Force
The force that pushes objects towards the center of the Earth
Radiation
Heat transferred by waves
(Conduction / Radiation / Convection) is the transfer of energy through a medium such as a liquid or a gas.
Two of these are kinetic energy. One of these is potential. Which ones are which?
Radiant = kinetic
Electrical = kinetic
Chemical = potential
When a substances freezes from a liquid to a solid, thermal energy (increases / decreases / stays the same) which causes the kinetic energy to (increase / decrease / stay the same) and the particles to move (faster / slower / at the same rate).
Increases, increase, faster
Magnetism
attraction/repulsion, produces the field magnets use
Convection
heat transferred through liquid or gas
Two solid objects are touching. What would show us that kinetic energy had been transferred? (Hint: Temperature)
The temperature of one object increased and the temperature of the other object decreased
As the ( speed / mass ) increases, the kinetic energy of the car ( increases / decreases / stays the same ).
mass; increase
When coal is burned to produce electricity, the electrical energy produced is less than the potential energy of the coal. Why?
Some of the potential energy in the coal is converted into forms of energy other than electricity.
Thermal Energy
Heat energy that causes molecules to move
Conduction
Heat Transferred through direct contact
Emily, Josh, and Eric are arguing about why you feel heat from a fireplace when you stand near it. This is what they said: Emily says, “When you feel heat from the fire it’s because of conduction.”Josh says, “Emily you’re wrong! It’s radiation.”Eric says, “No, Emily and Josh, it’s convection!” Who is right and why?
A parked car has a battery, which has what type of energy.
potential
As a pendulum swings from its highest to lowest position, what happens to kinetic and potential energy?
The potential energy decreases while the kinetic energy increases.